"Vrátila se v kabátu, pod nímž měla své krátké černé šaty."

[teabeadle]

Some nonsense happened here: the question asked me to translate "She returned HE v coat, under to whom she had yours short black dress." into English. (All weird capitalizations are exactly how it showed up.)

[teabeadle]

Never mind, it turns out that chromium suddenly (without the least bit of warning or asking permission) started translating any text that wasn't in English. GRRR. (After changing the chromium language-settings to add Czech as a language I know, it now works fine.)